ff5eb6e500
more information and there may be number that matches quality identificator while we with Henrikas did not find such video; there may be
91 lines
2.8 KiB
Lua
91 lines
2.8 KiB
Lua
#!${LOCALBASE}/bin/lua
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-- $OpenBSD: yt.lua,v 1.19 2009/01/07 00:14:52 martynas Exp $
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-- Fetch videos from YouTube.com and convert them to MPEG.
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-- Written by Pedro Martelletto in August 2006. Public domain.
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-- Example: lua yt.lua http://www.youtube.com/watch?v=c5uoo1Kl_uA
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http = require("socket.http")
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-- Make sure a URL was given.
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url = assert(arg[1], "Wrong usage, no URL given")
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-- Set this to a command capable of talking HTTP and following 3XX requests.
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fetch = "ftp -o <file> <url>"
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-- Set this to a command capable of converting from FLV to MPEG.
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convert = "ffmpeg -y -i <flv> -b 1000k -f mp4 -vcodec mpeg4 -acodec libfaac -ab 128k <mp4> 1>/dev/null 2>&1"
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-- Set this to the base location where to fetch YouTube videos from.
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base_url = "http://www.youtube.com/get_video"
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-- Convert embedded links to the correct form
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url = string.gsub(url, "/v/", "/watch?v=")
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-- Fetch the page holding the embedded video.
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print(string.format("Getting %s ...", url))
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body = assert(http.request(url))
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-- Look for the video title.
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pattern = "<title>(.-)</title>"
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title = assert(string.match(body, pattern))
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-- Fetch high quality if available
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if (string.match(body, "yt.VideoQualityConstants.HIGH") ~= nil) and
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((string.match(body,"/watch_fullscreen%?.*fmt_map=[^&]*%%2C6[^%d]")~=nil) or
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(string.match(body,"/watch_fullscreen%?.*fmt_map=6[^%d]")~=nil)) then
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fmt = "&fmt=6"
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else
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fmt = ""
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end
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-- Build a name for the files the video will be stored in.
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file = string.gsub(title, "[^%w-]", "_")
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file = string.lower(file)
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flv = file .. ".flv"
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mp4 = file .. ".mp4"
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-- Escape the file names.
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e_flv = string.format("%q", flv)
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e_mp4 = string.format("%q", mp4)
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-- Look for the video ID.
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pattern = "/watch_fullscreen%?.*video_id=([^&\"]*)"
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video_id = string.match(body, pattern)
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-- check for error such as "This video is not available in your country."
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error_pattern = "<div class=\"errorBox\">%s+(.-)</div>"
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error = string.match(body, error_pattern)
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if error then
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print(error)
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return
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end
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if video_id then
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--- Look for the additional video ID.
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pattern = "/watch_fullscreen%?.*&t=([^&\"]*)"
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t = assert(string.match(body, pattern))
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url = string.format("%q", base_url .. "?video_id=" .. video_id
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.. "&t=" .. t .. fmt)
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else
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-- We assume it's Google Video URL.
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pattern = "'/googleplayer.swf%?videoUrl(.-)'"
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url = assert(string.match(body, pattern))
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url = string.gsub (url, "\\x", "%%")
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url = string.gsub (url, "%%(%x%x)", function(h)
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return string.char(tonumber(h,16)) end)
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url = string.gsub (url, "^=", "")
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url = string.format("%q", url)
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end
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-- Fetch the video.
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cmd = string.gsub(fetch, "<(%w+)>", { url = url, file = e_flv })
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assert(os.execute(cmd) == 0, "Failed")
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-- Convert it to MPEG.
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cmd = string.gsub(convert, "<(%w+)>", { flv = e_flv, mp4 = e_mp4 })
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print("Converting ...")
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assert(os.execute(cmd) == 0, "Failed")
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os.remove(flv)
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print("Done. Video saved in " .. mp4 .. ".")
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